My husband and I normally cruise with RCCL but took two cruises on Norwegian Escape. The first one was June 2016 and it was amazing, to a large degree because of the cruise directory and assistant cruise director (Tyler G and Andre respectively). The second one was February 2018. We had fun, traveled with 2 other couples, and thoroughly enjoyed the ship, but the cruise directory was boring. It makes a difference but still, we had a good time and the ship was great. We especially loved The District.
So we booked this 10 day cruise on the Epic and overall it was a little disappointing. We had a good time - we were on a cruise, how could you not have a good time?? - but we have definitely had better experiences.
The ship is very dark. Unlike Escape, which has tons of outside seating via restaurants, there is very little outside seating other than on deck 15. So if you are walking around the ship on the inside, you rarely see daylight.
Hated the "bathroom." There wasn't one. See above.